Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| Challenger Ostrava | 2024/04/22 09:10 | Jakub Nicod v Robert Strombachs | 6-2,6-3 |
| Challenger Ostrava | 2024/04/21 09:40 | David Poljak v Robert Strombachs | 6-7,6-1,3-6 |
| Challenger Split | 2024/04/08 08:00 | Felix Gill v Robert Strombachs | 6-1,4-6,6-3 |
| Challenger Split | 2024/04/07 12:00 | Duje Markovina v Robert Strombachs | 2-6,2-6 |
| Challenger Barcelona | 2024/03/31 11:00 | Robert Strombachs v Ryan Nijboer | 3-6,0-6 |
| Challenger Pau | 2024/02/19 13:05 | James Trotter v Robert Strombachs | 6-4,7-5 |
| Challenger Pau | 2024/02/18 15:15 | Alexis Gautier v Robert Strombachs | 3-6,3-6 |
| Challenger Glasgow | 2024/02/15 10:00 | Hamish Stewart v Robert Strombachs | 1-6,7-5,6-1 |
| ITF M15 Monastir | 2024/03/27 09:45 | Constantin Bittoun Kouzmine v Benjamin Gusic Wan | 6-0,6-4 |
| Challenger Glasgow | 2024/02/11 10:00 | Benjamin Gusic Wan v Martyn Pawelski | 2-6,3-6 |